An induction heating apparatus according to one embodiment may confirm a feature of a container and determine an operation mode based on the feature of the container before performing an operation of heating the container. In one embodiment, the operation mode of the induction heating apparatus may be determined as any one of a frequency doubler mode, a half bridge mode, and a full bridge mode. In one embodiment, a power control mode of the induction heating apparatus may be determined based on an operation mode of the induction heating apparatus. In one embodiment, the power control mode of the induction heating apparatus may be determined as any one of an asymmetric pulse width modulation (APWM) mode and a phase shift mode.
Legal claims defining the scope of protection, as filed with the USPTO.
5. The method of claim 1, wherein the second reference frequency value is set to a minimum frequency value of the working coil.
6. The method of claim 1, comprising asymmetrically setting duty ratios of complementary switching signals of the inverter circuit when the determined power control mode is the asymmetric pulse width modulation mode.
7. The method of claim 1, comprising setting mutually corresponding switching signals of the inverter circuit so as to have a phase difference when the determined power control mode is the phase shift mode.
Cooperative Patent Classification codes for this invention. Click any code to explore related patents in that topic.
May 6, 2021
July 2, 2024
Browse 5M+ US patents with plain-English claim translations and AI-generated analysis.